Table 1. Comparison of fracture resistance between all four groups.
N (Newton)
| Group name | Number of Samples | Mean | Std. Deviation | F Value | P Value |
| Butt Joint Cerec Tessera (A1) | 10 | 90.80 N | 5.78 | 413.90 | 0.00 HS |
| Butt Joint Upcera (A2) | 10 | 38.29 N | 4.16 | ||
| Feather Edge Cerec Tessera (B1) | 10 | 111.55 N | 5.82 | ||
| Feather Edge (B2) | 10 | 58.84 N | 4.25 |